Properties of the Number 76245

Seventy-Six Thousand Two Hundred Forty-Five

Basics

Value: 76244 → 76245 → 76246

Parity: odd

Prime: No

Previous Prime: 76243

Next Prime: 76249

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 3 × 5 × 13 × 17 × 23

Divisors: 1, 3, 5, 13, 15, 17, 23, 39, 51, 65

Polygonal

Triangular: Yes

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10010100111010101

Octal: 224725

Duodecimal: 38159

Hexadecimal: 129d5

Square: 5813300025

Square Root: 276.1249717066531

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

Augmented amicable pairs (larger member of each pair). A15630

Triangular numbers that are one-eighth of other triangular numbers; T(t) such that 8·T(t)=T(u) for some u where T(k) is the k-th triangular number. A336624

Fibonacci sequence beginning 2, 17. A22118

Squarefree numbers m such that the equation x*(x+1)*(x+2) = m·y² has more than one solution (x,y) with x>0 and y>0. A335715

Numbers n such that the middle coefficient of the cyclotomic polynomial Phi_n(x) has a value not obtained for any smaller n. A95877

Number of unordered pairs of strict integer partitions of n. A366317

a(n) = (n²-1)*(2·n²-1). A33595

Triangular numbers in which the sum of the external digits equals the sum of the internal digits. A88289

Minimum number of moves to solve the second Panex puzzle of order n of exchanging the two side towers. A109224

Number of 0..n arrays of length 5 with each element differing from at least one neighbor by 2 or more, starting with 0. A221516